* {
  margin: 0;
  padding: 0;
  text-decoration: none;
  list-style: none;
}
a {
  display: inline-block;
  color: #fff;
}
.banxin {
  width: 1000px;
  margin: auto;
}
.box {
  width: 100%;
  background-color: #ff5046;
}
.box .heard-box {
  display: flex;
  height: 80px;
  line-height: 80px;
}
.box .heard-box a img {
  margin-top: 20px;
}
.box .heard-box .title {
  margin-left: 100px;
}
.box .heard-box .title a {
  margin-left: 40px;
}
.box .heard-box .title a:hover {
  opacity: 0.7;
}
.box .heard-box .title :nth-child(1) {
  border-top: 3px solid #fff;
}
.box .center-box {
  width: 350px;
  margin: 20px auto;
}
.box .center-box .download {
  width: 103px;
  display: block;
  height: 48px;
  background: url(images/download.png) left top no-repeat;
  line-height: 48px;
  padding-left: 60px;
  margin: 10px auto;
}
.box .center-box .download:hover {
  background: url(images/download_hover.png);
}
.box .img-box {
  height: 440px;
  transform-style: preserve-3d;
  perspective-origin: 50% 50%;
  position: relative;
}
.box .img-box :nth-child(1) {
  animation: img1 0.8s ease-out 0.5s backwards;
  position: absolute;
  width: 275px;
  height: 328px;
  left: 0px;
  bottom: -10px;
}
.box .img-box :nth-child(2) {
  animation: img1 0.8s ease-out 0.2s backwards;
  position: absolute;
  width: 291px;
  height: 312px;
  left: 170px;
  bottom: 35px;
}
.box .img-box :nth-child(3) {
  animation: img3 1s linear 0.2s backwards;
  position: absolute;
  width: 354px;
  height: 371px;
  left: 323px;
  bottom: 55px;
}
.box .img-box :nth-child(4) {
  animation: img2 0.8s ease-out 0.2s backwards;
  position: absolute;
  width: 303px;
  height: 262px;
  left: 520px;
  top: 20px;
}
.box .img-box :nth-child(5) {
  animation: img2 0.8s ease-out 0.5s backwards;
  position: absolute;
  width: 306px;
  height: 226px;
  left: 670px;
  top: 0px;
}
@keyframes img1 {
  0% {
    transform: translate3d(-2000px, 0, 0);
  }
  100% {
    transform: rotate3d(0, 0, 0);
  }
}
@keyframes img2 {
  0% {
    transform: translate3d(2000px, 0, 0);
  }
  100% {
    transform: rotate3d(0, 0, 0);
  }
}
@keyframes img3 {
  0% {
    transform: scale(0);
  }
  30% {
    transform: scale(1);
  }
  40% {
    transform: scale(0.8);
  }
  50% {
    transform: scale(1.5);
  }
  60% {
    transform: scale(0.7);
  }
  70% {
    transform: scale(1.7);
  }
  80% {
    transform: scale(0.9);
  }
  90% {
    transform: scale(1.2);
  }
  100% {
    transform: scale(1);
  }
}
.middle-box {
  margin-top: 50px;
}
.middle-box li {
  width: 232px;
  height: 450px;
  overflow: hidden;
  display: inline-block;
  vertical-align: top;
  font-size: 17px;
  color: #444;
  text-align: center;
}
.middle-box li img {
  cursor: pointer;
}
.middle-box li img:hover {
  opacity: 0.7;
}
.middle-box li .text {
  margin-top: 15px;
  line-height: 17px;
}
.middle-download {
  margin-top: 50px;
  text-align: justify;
}
.spanText {
  width: 184px;
  height: 184px;
  padding-top: 36px;
  background: url(images/home_icons.png) no-repeat center center;
  vertical-align: top;
  text-align: center;
  color: #fff;
  line-height: 184px;
  display: inline-block;
  transition: all 0.4s;
  box-sizing: border-box;
}
.sing-public-container-inline-block {
  width: 100%;
  display: inline-block;
  height: 60px;
}
.spanText:hover {
  transform: scale(1.05);
}
.iphone .spanText {
  background-position: 0 0;
}
.android .spanText {
  background-position: -185px 0;
}
.ipad .spanText {
  background-position: -370px 0;
}
.win-phone .spanText {
  background-position: -555px 0;
}
.home-icon {
  background-position: -740px 0;
}
.bottom-box {
  padding: 29px 0 24px;
  text-align: center;
  color: #b2b2b2;
  font-size: 14px;
  line-height: 18px;
  background-color: #f0f0f0;
}
.bottom-box a {
  color: #8b8a8a;
}
